6902| 16
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滾輪材質選擇? |
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點評
我們那個出碴車,三十多噸,單輪緣的,時速可以跑到七八公里。只要軌距沒事,都不會出軌。
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Archiver|手機版|小黑屋|機械社區 ( 京ICP備10217105號-1,京ICP證050210號,浙公網安備33038202004372號 )
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